421142183177 has 2 divisors, whose sum is σ = 421142183178. Its totient is φ = 421142183176.

The previous prime is 421142183141. The next prime is 421142183191. The reversal of 421142183177 is 771381241124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246153907321 + 174988275856 = 496139^2 + 418316^2 .

It is a cyclic number.

It is not a de Polignac number, because 421142183177 - 2⁶ = 421142183113 is a prime.

It is not a weakly prime, because it can be changed into another prime (421142183117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210571091588 + 210571091589.

It is an arithmetic number, because the mean of its divisors is an integer number (210571091589).

Almost surely, 2^421142183177 is an apocalyptic number.

It is an amenable number.

421142183177 is a deficient number, since it is larger than the sum of its proper divisors (1).

421142183177 is an equidigital number, since it uses as much as digits as its factorization.

421142183177 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75264, while the sum is 41.

The spelling of 421142183177 in words is "four hundred twenty-one billion, one hundred forty-two million, one hundred eighty-three thousand, one hundred seventy-seven".